Stamp affixing device



w. N. ROBERTS 2,230,016 STAMP AFFIXING DEVICE Filed Sep. 22, 1939 4SheelZS--She'l l WMM@ /L'Hoen @M WMM@ Jan. 28, 1941.

W. N. ROBERTS STAMP AFFIXING DEVICE Fild Sept. 22, 1959 IV.' Rober/s.

Jan. 2% i941, W, N, RQBER-lrs 2,239,016

STAMP AFFIXING DEVICE Filed Sept. 22, 1939 4 Sheets-'Sheet 3 W. N.ROBERTS STAMP AFFIXING DEVICE Filed Sept. 22, 1939 Patented Jan. 28,1941 UNI-TED STATES PATENT OFFICE 26 Claims.

My invention relates to stamp alixing devices.

An important object of the invention is to provide a machine of theabove mentioned character, which will feed the stamp, press the stamp 5upon the object, meisten the same, and sever the stamp from a strip ofstamps.

A further object of the invention is to provide a machine of the abovementioned character which is small and is adapted to be held in one mhand of the operator, as a tool, for its complete manipulation.

A further object of the invention is to provide a device of the abovementioned character, which will perform its work quickly and accurately.

A further object of the invention is to provide a device of the abovementioned character which will apply stamps of varying shapes and sizes.

A further object of the invention is to provide a device oi the abovementioned character, which will manipulate a strip of stamps, containinga small or large number of stamps.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame:

Figure l is a perspective View of a stamp apply- :zo ing deviceembodying my invention,

Figure 2 is a side elevation of the same, with the casing in the raisedposition,

Figure 3 is a vertical section taken on line 3-3 of Figure 2,

Figure 4 is a horizontal section taken on line 4 4 of Figure 2,

Figure 5 is a, central vertical longitudinal section through the device,the movable casing section being open,

Figure 6 is a transverse vertical section taken on line 6-6 of Figure 2,

Figure 7 is an exploded perspective view of the stamp afiixing device,

Figure 8 is a central vertical section through ,g5 the device, showingthe casing in the uppermost position at the starting of the operation,

Figure 9 is a similar View showing the casing partly lowered and thestamp partly fed and spaced from the attaching surface, and,

.zo Figure l0 is a similar view showing the casing moved to thelowermost position with the stamp engaging the attaching surface andpositioned beneath the pressure roll.

In the drawings, wherein for the purpose of 51: illustration is shown apreferred embodiment of (Cl. 21S-33) my invention, the numeral 2l!designates the casing including a relatively stationary section 2l and amovable section 22 hinged to the stationary section 2| as shown at 23.The movable casing section 22 is shown as provided at its top with guidelock flanges 24, receiving a top member 25, the upper surface of whichis preferably knurled, as shown. The top member is provided with flanges26 to engage within the flanges 24, The top member serves to lock themovable casing section 22 in the closed position, but the top member maybe slid forwardly so that the flanges 2li are Withdrawn from within theflanges 2li, at which time the casing section 22 is released and is freeto be moved to the open position. Any other suitable means may beemployed to hold the casing section 22 in the closed position. Thepurpose of the movable casing section 22 is to provide access to theinterior of the casing, for the insertion of stamps, and other means mayalso be provided to alford this access, if desired.

Means are provided to form a water holding tank 2l in the movable casingsection 22. The tank 2l preferably extends around one edge of themovable casing section 22 and across the top and bottom of the same.Access is had to the upper end of the tank 2l, for refilling by aremovable cap 28, arranged beneath the top member 25. The tank 2lextends about the bottom of the casing section 22, as explained, andthis tank has an upwardly extending shoulder 2t, providing a guide 30for the stamps.`

Arranged beneath the casing 2t* is a pressure element or roll 32, whichserves to apply or iron out the stamp upon the envelope or the like andalso to pull the stamp to complete its feeding movement. 'I'his roll isrotatable upon a hori zontal transverse shaft 33, carried by spaced legs34, vertically arranged, and operating within vertical guides 35,preferably formed upon the interior of the relatively stationary casingsection 2|. The casing 20 is normally held raised with respect to thelegs 34 by means of a compressible coil spring 3G. When pressure isapplied to the top member 25 by the hand, and the pressure roller 32 isengaging a stationary support, the casing 2|] moves down upon the legs34, as will be more fully described.

Means is provided to lock the casing 26 in the uppermost and lowermostpositions with respect to the legs 3ft. This means comprises upper andlower bolts .il and 38, rigidly connected by a vertical bar 39. Thesebolts are reciprocated horizontally by a thumb-piece 4Q'. The bolts 3land 38 are adapted to enter notches lll and 42 formed in the leg 34,when the casing is in the lowermost position, and the bolt 33 will enterthe notch 4l when the casing is in the uppermost position, the bolt 31then being above the leg.

Arranged near and above the shoulder 29 is a stamp feed roll 43, whichis preferably rubber covered and rotatable upon a fixed horizontaltransverse shaft 44. Arranged near and beneath the feed roll 43 is apressure feed plate 45, the forward end of which is adapted to contactwith the stamp and firmly press the same against the feed roll 43. Thepressure feed plate is provided with an upwardly bulging rib 46, and afriction strip 41, is attached to or carried by the plate 55'. The bar41 depresses the stamp with respect to the rib 46, and the elements 46and 41 serve as friction means to prevent the stamp being fed toofreely. Elements 45 and 41 may be omitted if desired. The pressure feedplate has spaced upwardly extending wings 49, preferably integraltherewith, and these wings are pivotally mounted upon the relativelystationary casing section 2|, as shown at 50. The wings 49 are connectedby a bar 5|, engaged by a compressible leaf spring 52. The function ofthe spring is to yieldingly hold the pressure feed plate against thefeed roll 43, during the feeding movement of the feed roll.

The wings 43 and a portion of the pressure feed plate 45 constitute amagazine for holding va strip of perforated stamps 49. This magazine isinclined and its forward end is covered by a plate 50' having an opening5| for the passage of the stamps. Ihe magazine has a width greater thanthe stamp having the maximum width and hence the magazine will holdstamps of various widths and various lengths, the top of the magazinebeing open. Any suitable form of adjustable guide means 52' may bemounted in the magazine to contact with the edges of the strip ofstamps. While I have shown a folded strip of perforated stamps heldwithin the magazine I also contemplate using a coiled strip ofperforated stamps or I may also use a strip of non-perforated stamps,but in this event I would have to modify the stamp severing means.

Means is provided to turn the feed roll 43 to cause it to advance thestamp for a distance less than the length of the stamp but for asuiicient distance to present the leading end of the stamp beneath thepressure roll 32, to be gripped by the pressure roll 32. for it is theaction of the pressure roll 32 which completes the feeding movement ofthe stamp and its severance from the strip. The means which turns thefeed roll 43 comprises a vertical friction drive plate 53, having alaterally bent top end 54. The friction drive plate 53 has wings 55which are rigidly attached to the legs 34. This attachment is adjustableand for this purpose the wings have elongated slots 56 to receive bolts51 adapted to clamp the wings to the legs 34 in the selected adjustedposition. The face of the friction drive plate 53 next to the feed roll43 is disposed to rmly engage with the feed roll 43, to turn the roll 43when the casing descends with respect to the friction drive plate 53,and the extent of turning movement of the feed roll 43 will depend uponthe length of contact between the friction drive plate 53 and the feedroll 43, which length is predetermined so that the feed roll 43 willdisengage the lower end of the plate 53 when the stamp has been fedsuciently to engage beneath the pressure roll 32 but not fed throughoutits entire length. Figure 8 represents the feedroll 43 in the raisedposition before it is moved downwardly to engage the plate 53 whileFigure 9 shows the feed roll 43 moved downwardly to clear the lower endof the plate 53, for the purpose explained, and feed roll 43 occupiesthe position in Figure 9 when the casing has been shifted downwardly buthas not as yet reached the lowermost position.

When the casing is moved downwardly to the lowermost position, means isactuated to shift the pressure plate 45 from the feed roll 43, so thatthe stamp may be freely drawn beneath these parts by the action of thepressure roll 37.. The means which moves the plate 45 from the feed roll43 comprises a lever 58 disposed adjacent to each edge of the plate 45,which lever is pivoted between its ends upon the shaft 44. This leverhas a rear end or dog 59, having a flat face 63, to engage the pressureplate 45, to shift the plate 45 from the feed roll. The forward or freeend of the lever 58 is disposed in the path of travel of a pin 5Isecured to the adjacent leg 34.

I also contemplate providing additional manually operated means to movethe plate 45 from the feed roll. This means comprises a link 60',pivotally connected with the wing 49 and also pivotally connected with athumb-piece 65a, disposed upon the opposite side of the casing withrespect to the thumb-piece 40.

Means is provided-to sever each perforated stamp from the strip. 'I'hismeans comprises a blade B2 provided at its ends with trunnions 63,pivoted in knuckles 63. The blade has an upper section 64 provided witha smooth edge and a lower section 55, disposed at an angle with respectto the upper section and having serrations 603 spaced to enter theperforations of the stamp. The lower section 65 is weighted as shown at61 and the weights tend to hold the blade 52 in the position shown inFigure 9. Springs may be substituted for the weights. The lever 58 hasan arm 68, arranged to engage an extension 69 upon the blade 62, and toshift the blade to a generally horizontal position, Figure l0, with theserrations 55 facing upwardly and in an opposite direction to the feedof the stamp. The plate 45 is moved from the roll 43 aboutsimultaneously with the movement of the blade 62 to the horizontalposition, Figure 10. Each leg 34 has an upper pin 10, which engages thelever 58 and swings it down, when the casing is returned to theuppermost position.

The tank 21 is provided at its lower forward end with the curved guide33, which extends downwardly toward the pressure roll 32. This curvedguide has an opening for receiving a moistening element or Wick 12, asshown. There is a pivoted guide 12 and the stamp passes beneath it. Thetank 21 is provided with a separate moistening element or wick 13,covered by a removable cap 13', and which wick 13 may be used in sealingenvelopes.

The operation of the device is as follows:

When the casing 2i] is in the uppermost position, each pin 10 hastripped its lever 58 and the dog 59 releases the pressure feed plate 45,which now presses the stamp against the feed roll 43. The pressure roll32 engages with the fixed support such as an envelope upon a table. Whenthe casing 20 is moved downwardly from the uppermost position, Figure 8,the feed roll 43 engages the friction feed plate 53 and the feed roll 43is turned by its engagement with the friction feed plate. When thecasing has reached it clears the upper end of the plate 53.

Til

the lowered position but before it has reached the lowermost position,Figure 9, feed roll 43 disengages plate 53 and hence its rotation isstopped. By this time, the feed roll 43 has fed the stamp a sufficientdistance to cause the same when the casing is subsequently moved to itslowermost position, to contact with the envelope and to be in a positionto be engaged by the pressure roll 32, but the stamp has not been fedfor its entire length. The further downward movement of the casing 20moves each pin 6I to engage lever 58 and swing it upwardly whereby thepressure feed plate 45 is separated from the now stationary roll 43, andthe blade B2 which has heretofore functioned as a guide, is swung to agenerally horizontal position so that its serrations face upwardly in anopposite direction to the feed of the stamps. The stamp is fed with itsgummed side lowermost and travels over and in contact with themoistening element or wick l2 and is hence moistened. With the casingstill held in the lowermost position, and the pressure roller 32engaging the envelope and stamp, the entire device is shifted by arolling action of the roller in a direction toward the stamp. Thisresults in the roller firmly pressing the stamp to the envelope andexerting a pull upon the stamp to effect the feeding of the stamp forthe remainder of its length, and the serrations 66 enter theperforations of the stamp. During this operation, the plate 45 isseparated from the stationary roller 43 and the stamp will feed freelybetween these parts by the action of the roller 32 until the serrationsenter the perforations, and when this occurs, the leading stamp isseparated from the strip, but the leading end of the next stamp ispositioned well between the plate 45 and the feed roll 43 so that thenext stamp will be properly fed upon the next cycle of operation. If itis desired to use the roller 32 to seal the envelopes, the casing may belocked in the lowermost position, by the manipulation of the thumb-piece43, as explained. "When the afflxing of the leading stamp is completed,the casing 28 is returned to the uppermost position, and when the feedroll 43 again engages plate 53 the feed roll will be turned untilHowever, the feed roll 43 will not feed the stamp upon this upwardmovement of the casing, because the lever 5B remains in a set positionwith the dog 59 engaging and holding the plate 45 separated from thefeed roll 43 and hence the feed roll has no driving frictionalengagement with the then leading stamp. At about the time that thecasing reaches or approaches its uppermost position, each lever 58'engages the upper pin 10, which trips the lever and causes the dog 59 torelease the plate 45 which again presses the stamp into rm frictionalengagement with the feed roll 43. The weight 6B will automaticallyreturn the blade t2 to the normal upright position when the blade isdisengaged by the free end of the arm 63, and all parts of the machineare again reset so that the cycle of operation may be repeated.

It is to be understood that the forms of my invention herewith shown anddescribed are to be taken as preferred examples of the same and thatvarious changes in the shape, size, and arrangement of parts, may beresorted to, without departing from the spirit of my invention or thescope of the subjoined claims.

Having thus described my invention, what I claim is:

1. In a stamp aiiixing device, means for holding a strip of stamps, apressure element connected with the holding means, the holding means andpressure element having relative movement, means operated upon saidrelative movement to feed the leading stamp toward the pressure elementfor engagement with the pressure element, the pressure element holdingthe stamp upon the work when the holding means is moved from the affixedportion of the stamp so that the stamp is pulled, and means to sever thestamp from the strip after it is engaged by the pressure element andpulled.

2. In a stamp aixing device, a support, a pressure element carrying thesupport, means mounted upon the support for relative movement withrelation to the support and serving to hold a strip of stamps, a feedroll mounted upon said means to advance the leading stamp toward thepressure element, and a friction element mounted upon the support toengage with the feed roll for turning the same when the holding means ismoved with relation to the support.

3. In a stamp afflxing device, a support, a pressure element carried bythe support, means for holding a strip of stamps and mounted upon thesupport for movement with relation thereto, a feed roll mounted upon theholding means to advance the leading stamp toward the pressure element,a plate mounted upon the support and arranged to engage the periphery ofthe feed roll to turn the feed roll, an element to shift the stamp intoengagement with the feed roll, and means to move the element from thefeed roll.

4. In a stamp aiiixng device, an upstanding support, a pressure elementcarried by the support, means for holding a strip of stamps and mountedupon the upstanding support to be raised and lowered with relationthereto, a feed roll mounted upon the holding means to feed the leadingstamp toward the pressure element, an element mounted upon the supportto turn the feed roll when the feed roll is shifted downwardly upon thesupport, a pressure plate arranged near the feed roll to press the stampagainst the feed roll, and means to shift the pressure plate from thefeed roll when the feed roll is shifted downwardly a selected distance.

5. In a stamp affixing devi-ce, an upstanding support, a pressureelement carried by the support, means for holding a strip of stamps andmounted upon the upstanding support to be raised and lowered withrelation thereto, a feed roll mounted upon the holding means to feed theleading stamp toward the pressure element, an element mounted upon thesupport to turn the feed roll when the feed roll is shifted downwardlyupon the support, a pressure plate arranged near the feed roll to pressthe stamp against the feed roll, a pivoted lever mounted upon theholding means and having a part to engage the pressure plate to shiftthe same from the feed roll, and a trip arranged upon the support toengage and shift the lever.

6. In a stamp aflixing device, an upstanding support, a pressure elementcarried by the support, means for holding a strip of stamps and mountedupon the upstanding support to be raised and lowered with relationthereto, a feed roll mounted upon the holding means to feed the leadingstamp toward the pressure element, an element mounted upon the supportto turn the feed roll when the feed roll is shifted downwardly upon thesupport, a pressure plate arranged near the feed roll to press the stampagainst the feed roll, a pivoted lever carried by the holding means andhaving a part to engage the pressure plate and shift it from the feedroll, a trip mounted upon the support to engage and shift the lever, asevering device to act upon the stamps, and means operated by the leverto actuate the severing device.

'7. In a stamp axing device, means for holding a perforated strip ofstamps, means to feed the strip from the holding means, a plate overwhich the strip is passed, said plate having serrations to enter theperforations, means to move the plate so that its serrations extend in adirection opposite to the travel of the strip, and means to exert a pullupon the strip and disposed forwardly of the plate.

8` In a stamp aflixing device, means for holding a perforated strip ofstamps,feeding means to advance the strip from the holding meansincluding opposed elements, means to operate the feeding means, means toseparate the opposed elements, a blade arranged to have the strippassing from the feeding means travel over the same, said blade beingprovided with a longitudinal set of serrations, means to turn the bladeupon its longitudinal axis, and holding means to engage the leadingstamp forwardly of said plate.

9. In a stamp affixing device, an upstanding support, a pressure rollcarrying the support, means for holding a strip of stamps and mountedupon the support to be raised and lowered with relation thereto, meansto raise the holding means with relation to the support, a feed rollmounted upon the holding means, a stationary plate mounted upon thesupport to turn the feed roll when the holding means is lowered, apressure plate for coaction with the feed roll, a pivoted lever carriedby the holding means to move the pressure plate from the feed roll, atrip carried by the support to move the lever so that it shifts theplate from the feed roll, a second trip mounted upon the support to movethe lever in an opposite direction, means to supply water to the lowerface of the strip, a device to sever the leading stamp from the strip,and means to lock the holding device in one position when shiftedthereto with relation to the support.

1Q. In a stamp axing device, a lower part, a pressure element connectedwith the lower part to press the stamp upon the object, an upper partmounted upon the lower part and movable downwardly from a raisedposition with relation to the lower part, and stamp feed means mountedupon one part for engaging a strip of stamps for holding the stripspaced from the pressure element when the upper part is in the raisedposition and moving the strip downwardly into substantial engagementwith the pressure element when the upper part is moved to the loweredposition, the pressure element being manipulated to apply the stamp tothe object.

11. In a stamp anixing device, a relatively stationary part, a pressureelement connected with the relatively stationary part to apply the stampto the object, a movable part connected with the stationary part andshiftable downwardly from a raised position toward the object, means forholding a strip of stamps, and means to feed the strip toward thepressure element and automatically actuated upon the downward movementof the movabley part.

12. In a stamp aflixing device, a stationary part, a pressure elementconnected with the stationary part to apply the stamp to the work, amovable part connected with the stationary part and movable downwardly,means for holding a strip of stamps, means operated upon the downwardmovement of the movable part to feed the strip toward the pressureelement, and means to render the feed means incapable of feeding thestrip in a reverse direction when the movable part moves upwardly.

13. In a stamp afhXing device, a stationary part, a pressure elementconnected with the stationary part to apply the stamp to the work, amovable part connected with the stationary part and movable downwardly,means for holding a strip of stamps, and means to feed the strip in onedirection only to bring the same adjacent to the pressure element, thefeeding means being operated upon the downward movement of the movablepart.

14. In a stamp afxing device, a stationary part, a pressure rollassociated with the stationary part for applying the stamp to theobject, a movable part connected with the stationary part and shiftabledownwardly toward the object, means for holding a strip of stamps, aguide device serving to deliver the strip into contact with the side ofthe roll so that the strip will pass beneath the roll and be applied tothe object, and means operated upon the downward movement of the movablepart to feed the strip toward the A roll.

15. In a stamp a'ixing device, a stationary part, a pressure rollassociated with the stationary part for applying the stamp to theobject, a movable part mounted upon the stationary part, means forholding a strip of stamps, a guide device to deliver the strip to theobject so that the strip will pass beneath the roll, a feed roll toadvance the strip toward the object, means operated upon the downwardmovement of the movable part to turn the feed roll.

16. In a stamp aflxing device, a stationary part, a pressure elementassociated with the stationary part for applying the stamp to theobject, a movable part connected with the stationary part and movabledownwardly, means for holding a strip of stamps, means to feed the striptoward the pressure element including a roll carried by one part, and aplate carried by the other part to engage the roll and turn it.

17. In a stamp affixing device, a stationary part, a pressure elementassociated with the stationary part for applying the stamp to theobject, a movable part connected with the stationary part and movabledownwardly, means for holding a strip of stamps, means including a feedroll to feed the strip toward the pressure roll, means operated upon thedownward movement of the movable part to turn the feed roll and amoistener to apply water to that face of the strip remote from the feedroll and pressure roll, the moistener being spaced from both rolls.

18. In a stamp afxing device, a support, a pressure element connectedwith the support to press the stamp upon the object, a supportingstructure connected with the support and movable downwardly withrelation to the support from a raised position toward the object, meansfor holding a strip of stamps, means automatically actuated upon thedownward movement of the supporting structure to feed the strip towardthe pressure element and to release the strip when the supportingstructure substantially reaches the lowermost position, the pressureelement holding the stamp upon the work so that the strip is pulled whenthe device is shiftedI over the work.

I9. In a stamp afxing device, a support, a pressure element connectedwith the support to press the stamp upon the object, a supportingstructure connected with the support and mo-vable downwardly withrelation to the support from a raised position toward the object, meansfor holding a strip of stamps, means automatically operated upon thedownward movement of the supporting structure to feed the strip intoengagement with the pressure element, and means to cause the feed meansto release the strip after the strip is moved downwardly to engage boththe pressure element and the object.

20. In a stamp aifixing device,a support,apressure element connectedwith the support to press the stamp upon the object, a supportingstructure connected with the support and movable downwardly withrelation to the support from a raised position toward the object, meansfor holding a strip of stamps, guide means mounted upon the supportingstructure to deliver the strip into contact with the side portion of thepressure element so that the strip will pass substantially beneath thepressure element, means mounted upon the supporting structure andautomatically operated upon the downward movement of the supportingstructure to feed the strip, and means to cause the feeding means torelease the strip.

21. In a stamp affixing device, a support, a pressure roll having thesupport secured thereto, a supporting structure mounted upon the supportand adapted to reciprocate with relation thereto, means for holding astrip of stamps, a guide device for the strip mounted upon thesupporting structure and serving to deliver the strip adjacent to thepressure roll so that the strip will pass beneath the pressure roll, afeed roll to advance the strip with relation to the supportingstructure, means to turn the feed roll when the supporting structure ismoved toward the pressure roll, means to meisten the strip, the pressureroll serving to hold the stamp upon the work so that the strip is pulledwhen the device is shifted over the Work, and means to cause the leadingstamp to be separated from the strip due to the pulling action upon thestrip.

22. In a stamp afixing device, relatively movable connected parts, apressure element connected with one part, means for holding a perforatedstrip of stamps and automatically operated upon the relative movementbetween the parts to move the stamp toward the pressure element, thefeed means operating independently of the movement o-f the pressureelement, the pressure element moving over the stamp when the connectedparts are shifted bodily with relation tothe stamp to exert a holdingaction upon the stamp and to apply the stamp to the object, a memberhaving teeth, and means automatically operated by the relative movementbetween the parts to move the member so that the teeth are shifted to aposition whereby they may enter the perforations of the strip.

23. In a stamp axing device, a stationary part, a pressure elementassociated with the stationary part, a movable part connected with thestationary part, means for holding a perforated strip of stamps andautomatically operated by the movable part to move the strip toward thepressure element, the pressure element moving over the stamp when theconnected parts are shifted bodily with relation to the stamp to exert aholding action upon the stamp and to apply the stamp to the object, amember having teeth, means automatically operated lby the moveable partto move the member so that the teeth are shifted to a position wherebythey may enter the perforations of the strip, and automatic means toreturn the member to the normal position when the movable part returnsto its normal position so that its teeth will not obstruct the feedingmovement of the strip upon the next cycle of operation.

24. In a stamp afiiXing device, a support having a movable part, apressure element connected with the support, means operated by themovable part to partly apply the stamp to the object by feeding thestamp so that it contacts with the object and is positioned to beengaged by the pressure element, the application of the stamp upon theobject being completed by the action of the pressure element as thepressure element is shifted over the stamp, and means to sever the stampduring the' completion of its application to the object by the pullingaction upon the stamp caused by the shifting of the device over the workwhile the stamp is held to the work.

25. In a stamp afxing device, relatively movable connected parts, apressure element connected with one part to press the stamp upon theobject, stamp feed means mounted upon one part, means for automaticallyoperating the stamp feed means upon the relative movement between theparts, the stamp feed means operating independently of the movement ofthe pressure element, the pressure element moving over the stamp whenthe connected parts are shifted bodily with relation to the stamp toapply the stamp to the object.

26. In a stamp alxing device a relatively stationary part, a partconnected with the relatively stationary part and movable with relationthereto. a pressure element connected with the relatively stationarypart to press the stamp upon the object, stamp feed means mounted uponone part to move the stamp to a position adjacent to the pressureelement, means for automatically operating the stamp feed means upon themovement of the relatively movable part, the feed means operatingindependently of the movement of the pressure element, the pressureelement moving over the stamp when the connected parts are shiftedbodily to apply the stamp to the object.

WILLIAM N. ROBERTS.

